DSOGaming writes: "Umbra Software, the provider of state of the art rendering optimization middleware, announced today that its Umbra 3.1 SDK is now available for PlayStation 3, Xbox 360, PC, PlayStation Vita, iOS and future platforms. In case you were unaware of, Bungie is using Umbra 3 for its unannounced project and other developers are taking full advantage of Umbra, including: 38 Studios, IO Interactive, Sony Online Entertainment, Tripwire, and Remedy Entertainment. Moreover, Remedy’s upcoming Alan Wake: American Nightmare is powered by the Umbra middleware."